Finding the Fourth Proportional to 1,913,303.96, 2,640,359.16 and 1,053,864.20
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Solution
The fourth proportional to 1,913,303.96, 2,640,359.16 and 1,053,864.20 is: 1,454,332.43
Step by Step Solution
- Step 1: Write the proportion equation
1,913,303.96 : 2,640,359.16 = 1,053,864.20 : x - Step 2: Convert to fraction form
1,913,303.96/2,640,359.16 = 1,053,864.20/x - Step 3: Cross multiply
1,913,303.96x = 2,640,359.16 × 1,053,864.20 - Step 4: Simplify right side
1,913,303.96x = 2,782,579,993,866.07 - Step 5: Solve for x
x = 2,782,579,993,866.07/1,913,303.96 - Step 6: Final answer
x = 1,454,332.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.